Comprehensive guide for installing, wiring, operating, adjusting, troubleshooting and maintaining Mitsubishi FR‑F740 series inverters.
This manual covers the complete product confirmation, installation and wiring procedures, and detailed instructions for operating the FR‑F740 inverter series. It includes safety precautions, front‑cover removal and re‑installation, wiring diagrams for power and control circuits, and guidelines for peripheral equipment selection.
Further sections describe motor start‑up steps, parameter adjustment, error handling, maintenance checks, and full technical specifications. The document also provides environmental limits, recommended cable sizes, and UL/cUL compliance information for safe and reliable use. This manual is written in Chinese.
| Rated voltage (V) | 480V or more |
|---|---|
| Rated current (A) without power factor improving reactor | Varies by model (see table) |
| Ambient temperature (LD) | -10°C to +50°C (non‑freezing) |
| Ambient humidity (SLD) | 90%RH or less (non‑condensing) |
Switch off the power, wait more than 10 minutes, and check for residual voltage between the N/‑ and P/+ terminals.
Use HIV cable (600 V class 2 vinyl‑insulated) for 55K or less models.